bids are invited for design and supply of ac plant and acesories , on board spares for ac , documentation for ac , tools for ac , instlandcomm spares for ac , training for acplant , service intlln_stw_hat_sat_commissioning , submission of binding data , design and suply of hvac sys_equpt and accesors , on board spares for hvac , documentation for hvac , tools for hvac , services for installationof equipment , training for hvac system , service intlln_stw_hat_sat_commissioning , supply and erection_hvac ducting with fittng , warranty extension charge for 1st year , warranty extension charge for 2nd year total quantity : 18